Diversité Et Distribution De La Grande Faune Mammalienne Dans Le Parc National De Moukalaba-Doudou (Sud-Ouest Du Gabon)

Le Gabon, pays d’Afrique Centrale est recouvert a plus de 80% de la foret pourvue des zones diversifiees en paysages avec une importante biodiversite faunique et floristique. Cependant, cette biodiversite qui est mal connue dans certaines regions du pays est confrontee a plusieurs menaces. C’est dans cette optique que nous avons conduit un suivi de la faune dans la partie Nord Est du parc national de Moukalaba Doudou dont le but etait de determiner la diversite et la repartition spatiale des grands mammiferes sauvages. En utilisant la methode de line transect, nous avons installe 165 cameras traps le long de 11 transects. Les donnees ont ete performees par le GML (Generalized Linear Models). Au total, 80410 nuits-pieges ont ete realisees. Pres de 37 914 videos independantes ont ete obtenues et 10 especes de grands mammiferes dont les plus observes etaient les Cephalophes bleus et rouges suivis des Chevrotains aquatiques, Elephants et des Cercocebes. Les resultats obtenus suggerent que les especes de grands mammiferes sont distribuees en fonction des habitats. Les cephalophes de grande taille, le mandrill, la panthere, le chat dore, l’elephant, et le chevrotain aquatique ont des habitats preferentiels ; par contre, le gorille, le chimpanze, le cercocebe a collier blanc et le cephalophe bleu ne semblent pas etre affectes par l’habitat. Ce sont des especes ubiquistes. Cependant, tous les mammiferes peuvent etre observes sur l’ensemble des transects. Gabon, a country in Central Africa, is covered by more than 80% of the forest, with areas diversified into landscapes with significant fauna and flora biodiversity. However, this biodiversity, which is poorly understood in certain regions of the country, faces several threats. It is with this in mind that we conducted wildlife monitoring in the northeast part of Moukalaba Doudou National Park, the aim of which was to determine the abundance and spatial distribution of large wild mammals. Using the line transect method we installed 165 cameras traps along 11 transects. The data were performed by the GML (Generalized Linear Models). A total of 80,410 trap nights were completed. Almost 37,914 independent videos were obtained and 10 species of large mammals of which the most observed were the blue and red duikers followed by aquatic Chevrotains, Elephants and Mangabeys. The results obtained suggest that large mammal species are distributed according to habitats. Large duikers, mandrill, panther, golden cat, elephant, and aquatic chevrotain have preferred habitats; however, the gorilla, the chimpanzee, the white-collared cercocebe and the blue duiker do not seem to be affected by the habitat. They are ubiquitous species. However, all mammals can be seen on all of the transects.